18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * Copyright 2014 IBM Corp. 48c2ecf20Sopenharmony_ci */ 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ci#ifndef _ASM_PNV_PCI_H 78c2ecf20Sopenharmony_ci#define _ASM_PNV_PCI_H 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci#include <linux/pci.h> 108c2ecf20Sopenharmony_ci#include <linux/pci_hotplug.h> 118c2ecf20Sopenharmony_ci#include <linux/irq.h> 128c2ecf20Sopenharmony_ci#include <misc/cxl-base.h> 138c2ecf20Sopenharmony_ci#include <asm/opal-api.h> 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ci#define PCI_SLOT_ID_PREFIX (1UL << 63) 168c2ecf20Sopenharmony_ci#define PCI_SLOT_ID(phb_id, bdfn) \ 178c2ecf20Sopenharmony_ci (PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id)) 188c2ecf20Sopenharmony_ci#define PCI_PHB_SLOT_ID(phb_id) (phb_id) 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ciextern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id); 218c2ecf20Sopenharmony_ciextern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len); 228c2ecf20Sopenharmony_ciextern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state); 238c2ecf20Sopenharmony_ciextern int pnv_pci_get_power_state(uint64_t id, uint8_t *state); 248c2ecf20Sopenharmony_ciextern int pnv_pci_set_power_state(uint64_t id, uint8_t state, 258c2ecf20Sopenharmony_ci struct opal_msg *msg); 268c2ecf20Sopenharmony_ci 278c2ecf20Sopenharmony_ciextern int pnv_pci_set_tunnel_bar(struct pci_dev *dev, uint64_t addr, 288c2ecf20Sopenharmony_ci int enable); 298c2ecf20Sopenharmony_ciint pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode); 308c2ecf20Sopenharmony_ciint pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq, 318c2ecf20Sopenharmony_ci unsigned int virq); 328c2ecf20Sopenharmony_ciint pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num); 338c2ecf20Sopenharmony_civoid pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num); 348c2ecf20Sopenharmony_ciint pnv_cxl_get_irq_count(struct pci_dev *dev); 358c2ecf20Sopenharmony_cistruct device_node *pnv_pci_get_phb_node(struct pci_dev *dev); 368c2ecf20Sopenharmony_ciint64_t pnv_opal_pci_msi_eoi(struct irq_chip *chip, unsigned int hw_irq); 378c2ecf20Sopenharmony_cibool is_pnv_opal_msi(struct irq_chip *chip); 388c2ecf20Sopenharmony_ci 398c2ecf20Sopenharmony_ci#ifdef CONFIG_CXL_BASE 408c2ecf20Sopenharmony_ciint pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs, 418c2ecf20Sopenharmony_ci struct pci_dev *dev, int num); 428c2ecf20Sopenharmony_civoid pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs, 438c2ecf20Sopenharmony_ci struct pci_dev *dev); 448c2ecf20Sopenharmony_ci#endif 458c2ecf20Sopenharmony_ci 468c2ecf20Sopenharmony_cistruct pnv_php_slot { 478c2ecf20Sopenharmony_ci struct hotplug_slot slot; 488c2ecf20Sopenharmony_ci uint64_t id; 498c2ecf20Sopenharmony_ci char *name; 508c2ecf20Sopenharmony_ci int slot_no; 518c2ecf20Sopenharmony_ci unsigned int flags; 528c2ecf20Sopenharmony_ci#define PNV_PHP_FLAG_BROKEN_PDC 0x1 538c2ecf20Sopenharmony_ci struct kref kref; 548c2ecf20Sopenharmony_ci#define PNV_PHP_STATE_INITIALIZED 0 558c2ecf20Sopenharmony_ci#define PNV_PHP_STATE_REGISTERED 1 568c2ecf20Sopenharmony_ci#define PNV_PHP_STATE_POPULATED 2 578c2ecf20Sopenharmony_ci#define PNV_PHP_STATE_OFFLINE 3 588c2ecf20Sopenharmony_ci int state; 598c2ecf20Sopenharmony_ci int irq; 608c2ecf20Sopenharmony_ci struct workqueue_struct *wq; 618c2ecf20Sopenharmony_ci struct device_node *dn; 628c2ecf20Sopenharmony_ci struct pci_dev *pdev; 638c2ecf20Sopenharmony_ci struct pci_bus *bus; 648c2ecf20Sopenharmony_ci bool power_state_check; 658c2ecf20Sopenharmony_ci u8 attention_state; 668c2ecf20Sopenharmony_ci void *fdt; 678c2ecf20Sopenharmony_ci void *dt; 688c2ecf20Sopenharmony_ci struct of_changeset ocs; 698c2ecf20Sopenharmony_ci struct pnv_php_slot *parent; 708c2ecf20Sopenharmony_ci struct list_head children; 718c2ecf20Sopenharmony_ci struct list_head link; 728c2ecf20Sopenharmony_ci}; 738c2ecf20Sopenharmony_ciextern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn); 748c2ecf20Sopenharmony_ciextern int pnv_php_set_slot_power_state(struct hotplug_slot *slot, 758c2ecf20Sopenharmony_ci uint8_t state); 768c2ecf20Sopenharmony_ci 778c2ecf20Sopenharmony_ci#endif 78